#include "send.h"
#include "bat_algo.h"
-static struct neigh_node *bat_iv_ogm_neigh_new(struct hard_iface *hard_iface,
- const uint8_t *neigh_addr,
- struct orig_node *orig_node,
- struct orig_node *orig_neigh,
- __be32 seqno)
+static struct neigh_node *batadv_iv_ogm_neigh_new(struct hard_iface *hard_iface,
+ const uint8_t *neigh_addr,
+ struct orig_node *orig_node,
+ struct orig_node *orig_neigh,
+ __be32 seqno)
{
struct neigh_node *neigh_node;
return neigh_node;
}
-static int bat_iv_ogm_iface_enable(struct hard_iface *hard_iface)
+static int batadv_iv_ogm_iface_enable(struct hard_iface *hard_iface)
{
struct batman_ogm_packet *batman_ogm_packet;
uint32_t random_seqno;
return res;
}
-static void bat_iv_ogm_iface_disable(struct hard_iface *hard_iface)
+static void batadv_iv_ogm_iface_disable(struct hard_iface *hard_iface)
{
kfree(hard_iface->packet_buff);
hard_iface->packet_buff = NULL;
}
-static void bat_iv_ogm_iface_update_mac(struct hard_iface *hard_iface)
+static void batadv_iv_ogm_iface_update_mac(struct hard_iface *hard_iface)
{
struct batman_ogm_packet *batman_ogm_packet;
hard_iface->net_dev->dev_addr, ETH_ALEN);
}
-static void bat_iv_ogm_primary_iface_set(struct hard_iface *hard_iface)
+static void batadv_iv_ogm_primary_iface_set(struct hard_iface *hard_iface)
{
struct batman_ogm_packet *batman_ogm_packet;
}
/* when do we schedule our own ogm to be sent */
-static unsigned long bat_iv_ogm_emit_send_time(const struct bat_priv *bat_priv)
+static unsigned long
+batadv_iv_ogm_emit_send_time(const struct bat_priv *bat_priv)
{
return jiffies + msecs_to_jiffies(
atomic_read(&bat_priv->orig_interval) -
}
/* when do we schedule a ogm packet to be sent */
-static unsigned long bat_iv_ogm_fwd_send_time(void)
+static unsigned long batadv_iv_ogm_fwd_send_time(void)
{
return jiffies + msecs_to_jiffies(random32() % (JITTER/2));
}
/* apply hop penalty for a normal link */
-static uint8_t hop_penalty(uint8_t tq, const struct bat_priv *bat_priv)
+static uint8_t batadv_hop_penalty(uint8_t tq, const struct bat_priv *bat_priv)
{
int hop_penalty = atomic_read(&bat_priv->hop_penalty);
return (tq * (TQ_MAX_VALUE - hop_penalty)) / (TQ_MAX_VALUE);
}
/* is there another aggregated packet here? */
-static int bat_iv_ogm_aggr_packet(int buff_pos, int packet_len,
- int tt_num_changes)
+static int batadv_iv_ogm_aggr_packet(int buff_pos, int packet_len,
+ int tt_num_changes)
{
int next_buff_pos = 0;
}
/* send a batman ogm to a given interface */
-static void bat_iv_ogm_send_to_if(struct forw_packet *forw_packet,
+static void batadv_iv_ogm_send_to_if(struct forw_packet *forw_packet,
struct hard_iface *hard_iface)
{
struct bat_priv *bat_priv = netdev_priv(hard_iface->soft_iface);
batman_ogm_packet = (struct batman_ogm_packet *)forw_packet->skb->data;
/* adjust all flags and log packets */
- while (bat_iv_ogm_aggr_packet(buff_pos, forw_packet->packet_len,
- batman_ogm_packet->tt_num_changes)) {
+ while (batadv_iv_ogm_aggr_packet(buff_pos, forw_packet->packet_len,
+ batman_ogm_packet->tt_num_changes)) {
/* we might have aggregated direct link packets with an
* ordinary base packet
}
/* send a batman ogm packet */
-static void bat_iv_ogm_emit(struct forw_packet *forw_packet)
+static void batadv_iv_ogm_emit(struct forw_packet *forw_packet)
{
struct hard_iface *hard_iface;
struct net_device *soft_iface;
if (hard_iface->soft_iface != soft_iface)
continue;
- bat_iv_ogm_send_to_if(forw_packet, hard_iface);
+ batadv_iv_ogm_send_to_if(forw_packet, hard_iface);
}
rcu_read_unlock();
}
/* return true if new_packet can be aggregated with forw_packet */
-static bool bat_iv_ogm_can_aggregate(const struct batman_ogm_packet
- *new_batman_ogm_packet,
- struct bat_priv *bat_priv,
- int packet_len, unsigned long send_time,
- bool directlink,
- const struct hard_iface *if_incoming,
- const struct forw_packet *forw_packet)
+static bool
+batadv_iv_ogm_can_aggregate(const struct batman_ogm_packet *new_bat_ogm_packet,
+ struct bat_priv *bat_priv,
+ int packet_len, unsigned long send_time,
+ bool directlink,
+ const struct hard_iface *if_incoming,
+ const struct forw_packet *forw_packet)
{
struct batman_ogm_packet *batman_ogm_packet;
int aggregated_bytes = forw_packet->packet_len + packet_len;
* interface only - we still can aggregate
*/
if ((directlink) &&
- (new_batman_ogm_packet->header.ttl == 1) &&
+ (new_bat_ogm_packet->header.ttl == 1) &&
(forw_packet->if_incoming == if_incoming) &&
/* packets from direct neighbors or
}
/* create a new aggregated packet and add this packet to it */
-static void bat_iv_ogm_aggregate_new(const unsigned char *packet_buff,
- int packet_len, unsigned long send_time,
- bool direct_link,
- struct hard_iface *if_incoming,
- int own_packet)
+static void batadv_iv_ogm_aggregate_new(const unsigned char *packet_buff,
+ int packet_len, unsigned long send_time,
+ bool direct_link,
+ struct hard_iface *if_incoming,
+ int own_packet)
{
struct bat_priv *bat_priv = netdev_priv(if_incoming->soft_iface);
struct forw_packet *forw_packet_aggr;
}
/* aggregate a new packet into the existing ogm packet */
-static void bat_iv_ogm_aggregate(struct forw_packet *forw_packet_aggr,
- const unsigned char *packet_buff,
- int packet_len, bool direct_link)
+static void batadv_iv_ogm_aggregate(struct forw_packet *forw_packet_aggr,
+ const unsigned char *packet_buff,
+ int packet_len, bool direct_link)
{
unsigned char *skb_buff;
(1 << forw_packet_aggr->num_packets);
}
-static void bat_iv_ogm_queue_add(struct bat_priv *bat_priv,
- unsigned char *packet_buff,
- int packet_len, struct hard_iface *if_incoming,
- int own_packet, unsigned long send_time)
+static void batadv_iv_ogm_queue_add(struct bat_priv *bat_priv,
+ unsigned char *packet_buff,
+ int packet_len,
+ struct hard_iface *if_incoming,
+ int own_packet, unsigned long send_time)
{
/* _aggr -> pointer to the packet we want to aggregate with
* _pos -> pointer to the position in the queue
if ((atomic_read(&bat_priv->aggregated_ogms)) && (!own_packet)) {
hlist_for_each_entry(forw_packet_pos, tmp_node,
&bat_priv->forw_bat_list, list) {
- if (bat_iv_ogm_can_aggregate(batman_ogm_packet,
- bat_priv, packet_len,
- send_time, direct_link,
- if_incoming,
- forw_packet_pos)) {
+ if (batadv_iv_ogm_can_aggregate(batman_ogm_packet,
+ bat_priv, packet_len,
+ send_time, direct_link,
+ if_incoming,
+ forw_packet_pos)) {
forw_packet_aggr = forw_packet_pos;
break;
}
(atomic_read(&bat_priv->aggregated_ogms)))
send_time += msecs_to_jiffies(MAX_AGGREGATION_MS);
- bat_iv_ogm_aggregate_new(packet_buff, packet_len,
- send_time, direct_link,
- if_incoming, own_packet);
+ batadv_iv_ogm_aggregate_new(packet_buff, packet_len,
+ send_time, direct_link,
+ if_incoming, own_packet);
} else {
- bat_iv_ogm_aggregate(forw_packet_aggr, packet_buff,
- packet_len, direct_link);
+ batadv_iv_ogm_aggregate(forw_packet_aggr, packet_buff,
+ packet_len, direct_link);
spin_unlock_bh(&bat_priv->forw_bat_list_lock);
}
}
-static void bat_iv_ogm_forward(struct orig_node *orig_node,
- const struct ethhdr *ethhdr,
- struct batman_ogm_packet *batman_ogm_packet,
- bool is_single_hop_neigh,
- bool is_from_best_next_hop,
- struct hard_iface *if_incoming)
+static void batadv_iv_ogm_forward(struct orig_node *orig_node,
+ const struct ethhdr *ethhdr,
+ struct batman_ogm_packet *batman_ogm_packet,
+ bool is_single_hop_neigh,
+ bool is_from_best_next_hop,
+ struct hard_iface *if_incoming)
{
struct bat_priv *bat_priv = netdev_priv(if_incoming->soft_iface);
uint8_t tt_num_changes;
memcpy(batman_ogm_packet->prev_sender, ethhdr->h_source, ETH_ALEN);
/* apply hop penalty */
- batman_ogm_packet->tq = hop_penalty(batman_ogm_packet->tq, bat_priv);
+ batman_ogm_packet->tq = batadv_hop_penalty(batman_ogm_packet->tq,
+ bat_priv);
batadv_dbg(DBG_BATMAN, bat_priv,
"Forwarding packet: tq: %i, ttl: %i\n",
else
batman_ogm_packet->flags &= ~DIRECTLINK;
- bat_iv_ogm_queue_add(bat_priv, (unsigned char *)batman_ogm_packet,
- BATMAN_OGM_HLEN + batadv_tt_len(tt_num_changes),
- if_incoming, 0, bat_iv_ogm_fwd_send_time());
+ batadv_iv_ogm_queue_add(bat_priv, (unsigned char *)batman_ogm_packet,
+ BATMAN_OGM_HLEN + batadv_tt_len(tt_num_changes),
+ if_incoming, 0, batadv_iv_ogm_fwd_send_time());
}
-static void bat_iv_ogm_schedule(struct hard_iface *hard_iface)
+static void batadv_iv_ogm_schedule(struct hard_iface *hard_iface)
{
struct bat_priv *bat_priv = netdev_priv(hard_iface->soft_iface);
struct batman_ogm_packet *batman_ogm_packet;
batman_ogm_packet->gw_flags = NO_FLAGS;
batadv_slide_own_bcast_window(hard_iface);
- bat_iv_ogm_queue_add(bat_priv, hard_iface->packet_buff,
- hard_iface->packet_len, hard_iface, 1,
- bat_iv_ogm_emit_send_time(bat_priv));
+ batadv_iv_ogm_queue_add(bat_priv, hard_iface->packet_buff,
+ hard_iface->packet_len, hard_iface, 1,
+ batadv_iv_ogm_emit_send_time(bat_priv));
if (primary_if)
batadv_hardif_free_ref(primary_if);
}
-static void bat_iv_ogm_orig_update(struct bat_priv *bat_priv,
- struct orig_node *orig_node,
- const struct ethhdr *ethhdr,
- const struct batman_ogm_packet
- *batman_ogm_packet,
- struct hard_iface *if_incoming,
- const unsigned char *tt_buff,
- int is_duplicate)
+static void
+batadv_iv_ogm_orig_update(struct bat_priv *bat_priv,
+ struct orig_node *orig_node,
+ const struct ethhdr *ethhdr,
+ const struct batman_ogm_packet *batman_ogm_packet,
+ struct hard_iface *if_incoming,
+ const unsigned char *tt_buff,
+ int is_duplicate)
{
struct neigh_node *neigh_node = NULL, *tmp_neigh_node = NULL;
struct neigh_node *router = NULL;
if (!orig_tmp)
goto unlock;
- neigh_node = bat_iv_ogm_neigh_new(if_incoming, ethhdr->h_source,
- orig_node, orig_tmp,
- batman_ogm_packet->seqno);
+ neigh_node = batadv_iv_ogm_neigh_new(if_incoming,
+ ethhdr->h_source,
+ orig_node, orig_tmp,
+ batman_ogm_packet->seqno);
batadv_orig_node_free_ref(orig_tmp);
if (!neigh_node)
batadv_neigh_node_free_ref(router);
}
-static int bat_iv_ogm_calc_tq(struct orig_node *orig_node,
- struct orig_node *orig_neigh_node,
- struct batman_ogm_packet *batman_ogm_packet,
- struct hard_iface *if_incoming)
+static int batadv_iv_ogm_calc_tq(struct orig_node *orig_node,
+ struct orig_node *orig_neigh_node,
+ struct batman_ogm_packet *batman_ogm_packet,
+ struct hard_iface *if_incoming)
{
struct bat_priv *bat_priv = netdev_priv(if_incoming->soft_iface);
struct neigh_node *neigh_node = NULL, *tmp_neigh_node;
rcu_read_unlock();
if (!neigh_node)
- neigh_node = bat_iv_ogm_neigh_new(if_incoming,
- orig_neigh_node->orig,
- orig_neigh_node,
- orig_neigh_node,
- batman_ogm_packet->seqno);
+ neigh_node = batadv_iv_ogm_neigh_new(if_incoming,
+ orig_neigh_node->orig,
+ orig_neigh_node,
+ orig_neigh_node,
+ batman_ogm_packet->seqno);
if (!neigh_node)
goto out;
* -1 the packet is old and has been received while the seqno window
* was protected. Caller should drop it.
*/
-static int bat_iv_ogm_update_seqnos(const struct ethhdr *ethhdr,
- const struct batman_ogm_packet
- *batman_ogm_packet,
- const struct hard_iface *if_incoming)
+static int
+batadv_iv_ogm_update_seqnos(const struct ethhdr *ethhdr,
+ const struct batman_ogm_packet *batman_ogm_packet,
+ const struct hard_iface *if_incoming)
{
struct bat_priv *bat_priv = netdev_priv(if_incoming->soft_iface);
struct orig_node *orig_node;
return ret;
}
-static void bat_iv_ogm_process(const struct ethhdr *ethhdr,
- struct batman_ogm_packet *batman_ogm_packet,
- const unsigned char *tt_buff,
- struct hard_iface *if_incoming)
+static void batadv_iv_ogm_process(const struct ethhdr *ethhdr,
+ struct batman_ogm_packet *batman_ogm_packet,
+ const unsigned char *tt_buff,
+ struct hard_iface *if_incoming)
{
struct bat_priv *bat_priv = netdev_priv(if_incoming->soft_iface);
struct hard_iface *hard_iface;
struct neigh_node *orig_neigh_router = NULL;
int has_directlink_flag;
int is_my_addr = 0, is_my_orig = 0, is_my_oldorig = 0;
- int is_broadcast = 0, is_bidirectional;
+ int is_broadcast = 0, is_bidirect;
bool is_single_hop_neigh = false;
bool is_from_best_next_hop = false;
- int is_duplicate;
+ int is_duplicate, sameseq, simlar_ttl;
uint32_t if_incoming_seqno;
uint8_t *prev_sender;
if (!orig_node)
return;
- is_duplicate = bat_iv_ogm_update_seqnos(ethhdr, batman_ogm_packet,
- if_incoming);
+ is_duplicate = batadv_iv_ogm_update_seqnos(ethhdr, batman_ogm_packet,
+ if_incoming);
if (is_duplicate == -1) {
batadv_dbg(DBG_BATMAN, bat_priv,
goto out_neigh;
}
- is_bidirectional = bat_iv_ogm_calc_tq(orig_node, orig_neigh_node,
- batman_ogm_packet, if_incoming);
+ is_bidirect = batadv_iv_ogm_calc_tq(orig_node, orig_neigh_node,
+ batman_ogm_packet, if_incoming);
batadv_bonding_save_primary(orig_node, orig_neigh_node,
batman_ogm_packet);
/* update ranking if it is not a duplicate or has the same
* seqno and similar ttl as the non-duplicate
*/
- if (is_bidirectional &&
- (!is_duplicate ||
- ((orig_node->last_real_seqno == ntohl(batman_ogm_packet->seqno)) &&
- (orig_node->last_ttl - 3 <= batman_ogm_packet->header.ttl))))
- bat_iv_ogm_orig_update(bat_priv, orig_node, ethhdr,
- batman_ogm_packet, if_incoming,
- tt_buff, is_duplicate);
+ sameseq = orig_node->last_real_seqno == ntohl(batman_ogm_packet->seqno);
+ simlar_ttl = orig_node->last_ttl - 3 <= batman_ogm_packet->header.ttl;
+ if (is_bidirect && (!is_duplicate || (sameseq && simlar_ttl)))
+ batadv_iv_ogm_orig_update(bat_priv, orig_node, ethhdr,
+ batman_ogm_packet, if_incoming,
+ tt_buff, is_duplicate);
/* is single hop (direct) neighbor */
if (is_single_hop_neigh) {
/* mark direct link on incoming interface */
- bat_iv_ogm_forward(orig_node, ethhdr, batman_ogm_packet,
- is_single_hop_neigh, is_from_best_next_hop,
- if_incoming);
+ batadv_iv_ogm_forward(orig_node, ethhdr, batman_ogm_packet,
+ is_single_hop_neigh,
+ is_from_best_next_hop, if_incoming);
batadv_dbg(DBG_BATMAN, bat_priv,
"Forwarding packet: rebroadcast neighbor packet with direct link flag\n");
}
/* multihop originator */
- if (!is_bidirectional) {
+ if (!is_bidirect) {
batadv_dbg(DBG_BATMAN, bat_priv,
"Drop packet: not received via bidirectional link\n");
goto out_neigh;
batadv_dbg(DBG_BATMAN, bat_priv,
"Forwarding packet: rebroadcast originator packet\n");
- bat_iv_ogm_forward(orig_node, ethhdr, batman_ogm_packet,
- is_single_hop_neigh, is_from_best_next_hop,
- if_incoming);
+ batadv_iv_ogm_forward(orig_node, ethhdr, batman_ogm_packet,
+ is_single_hop_neigh, is_from_best_next_hop,
+ if_incoming);
out_neigh:
if ((orig_neigh_node) && (!is_single_hop_neigh))
batadv_orig_node_free_ref(orig_node);
}
-static int bat_iv_ogm_receive(struct sk_buff *skb,
- struct hard_iface *if_incoming)
+static int batadv_iv_ogm_receive(struct sk_buff *skb,
+ struct hard_iface *if_incoming)
{
struct bat_priv *bat_priv = netdev_priv(if_incoming->soft_iface);
struct batman_ogm_packet *batman_ogm_packet;
/* did we receive a B.A.T.M.A.N. IV OGM packet on an interface
* that does not have B.A.T.M.A.N. IV enabled ?
*/
- if (bat_priv->bat_algo_ops->bat_ogm_emit != bat_iv_ogm_emit)
+ if (bat_priv->bat_algo_ops->bat_ogm_emit != batadv_iv_ogm_emit)
return NET_RX_DROP;
batadv_inc_counter(bat_priv, BAT_CNT_MGMT_RX);
do {
tt_buff = packet_buff + buff_pos + BATMAN_OGM_HLEN;
- bat_iv_ogm_process(ethhdr, batman_ogm_packet,
- tt_buff, if_incoming);
+ batadv_iv_ogm_process(ethhdr, batman_ogm_packet, tt_buff,
+ if_incoming);
buff_pos += BATMAN_OGM_HLEN;
buff_pos += batadv_tt_len(batman_ogm_packet->tt_num_changes);
batman_ogm_packet = (struct batman_ogm_packet *)
(packet_buff + buff_pos);
- } while (bat_iv_ogm_aggr_packet(buff_pos, packet_len,
- batman_ogm_packet->tt_num_changes));
+ } while (batadv_iv_ogm_aggr_packet(buff_pos, packet_len,
+ batman_ogm_packet->tt_num_changes));
kfree_skb(skb);
return NET_RX_SUCCESS;
}
-static struct bat_algo_ops batman_iv __read_mostly = {
+static struct bat_algo_ops batadv_batman_iv __read_mostly = {
.name = "BATMAN_IV",
- .bat_iface_enable = bat_iv_ogm_iface_enable,
- .bat_iface_disable = bat_iv_ogm_iface_disable,
- .bat_iface_update_mac = bat_iv_ogm_iface_update_mac,
- .bat_primary_iface_set = bat_iv_ogm_primary_iface_set,
- .bat_ogm_schedule = bat_iv_ogm_schedule,
- .bat_ogm_emit = bat_iv_ogm_emit,
+ .bat_iface_enable = batadv_iv_ogm_iface_enable,
+ .bat_iface_disable = batadv_iv_ogm_iface_disable,
+ .bat_iface_update_mac = batadv_iv_ogm_iface_update_mac,
+ .bat_primary_iface_set = batadv_iv_ogm_primary_iface_set,
+ .bat_ogm_schedule = batadv_iv_ogm_schedule,
+ .bat_ogm_emit = batadv_iv_ogm_emit,
};
int __init batadv_iv_init(void)
int ret;
/* batman originator packet */
- ret = batadv_recv_handler_register(BAT_IV_OGM, bat_iv_ogm_receive);
+ ret = batadv_recv_handler_register(BAT_IV_OGM, batadv_iv_ogm_receive);
if (ret < 0)
goto out;
- ret = batadv_algo_register(&batman_iv);
+ ret = batadv_algo_register(&batadv_batman_iv);
if (ret < 0)
goto handler_unregister;
projects / cascardo / linux.git / commitdiff